In order to answer your question AND dissapoint you... :P
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It is impossible to write 0.02 in tenths.
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Let's review.
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Let's say we have decimal 0.123.
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In decimal format...
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1 is the tenths place.
2 is the hundredths place.
3 is the thousandths place.
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And so on.
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So... unfortunately, you cannot write 0.02 in tenths.
A(h)=4h+70, A(h)=dollars to rent for h hours, h=hours rented.
B(h)=5h+60, same variable explanations...
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To compare the two values at 6 hours you have:
A(6)=4(6)+70=24+70=$94
B(6)=5(6)+60=30+60=$90
So at 6 hours Company B would charge $4 less than Company A
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Savings at 7 hours of rental by using B instead of A is:
S(h)=A(h)-B(h)
S(h)=4h+70-5h-60
S(h)=-h+10
S(7)=-7+10=$3
So at 7 hours, Company B saves you $3.
20 + -14 = 6
I hope I helped you
0.955 and 0.750
It's hard for me to explain like this but feel free to friend request me and ask me more about it